2. using each of 1, 2, 3, 4, 5, and 6 once and only once, fill in the circles so that the
sums of the numbers on each side of the three sides of the triangle are equal. how
was the strategy you used for problem #1 above similar to the strategy you used to
solve this problem?
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Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Change negative exponents to positive, then solve